The first in-depth environmental analysis of electric cars that use lithium-ion batteries has been published, and the researchers have found that electric vehicles win out over their gasoline-fueled counterparts (Environ. Sci. Technol., DOI: 10.1021/es903729a). Some experts have been concerned that the environmental costs of manufacturing and disposing of electric-vehicle batteries might negate any benefits from reduced hydrocarbon fuel emissions. Dominic . . .